【Premium Quality】Made of industry grade 6542 high speed steel, Cobalt twist drill bits are harder than 4241/4341 HSS used in other similar bits, ideal for heavy duty hole drilling. They contain 5% cobalt material, increasing wear-resistance and durability.
【Most Commonly-Used5 Sizes】They fit the majority of power drill currently on the market and comes with a portable plastic case for easy storage and organization.
【Precise & Efficient Drilling Performance】 Fully Ground spiral groove design clears particles quickly, decreases friction and heat for a faster and cooler drilling performance. 135° Split Point with round straight shank prevents walking and makes drilling precise and faster. No center punch is needed.
【Multiple Application】Perfectly suitable for cutting through Hard Metal such as Stainless Steel, Steel, Sheet Metal and Cast Iron as well as Plastic, Aluminum Alloy, Wood and Other Softer Metals. NOT for Glass or Ceramic Materials. NOT for High Carbon Steel and Heat-Treated Steel. Pay attention to speed, pressure and heat control during drilling.
【Most Commonly-Used5 Sizes】They fit the majority of power drill currently on the market and comes with a portable plastic case for easy storage and organization.
【Precise & Efficient Drilling Performance】 Fully Ground spiral groove design clears particles quickly, decreases friction and heat for a faster and cooler drilling performance. 135° Split Point with round straight shank prevents walking and makes drilling precise and faster. No center punch is needed.
【Multiple Application】Perfectly suitable for cutting through Hard Metal such as Stainless Steel, Steel, Sheet Metal and Cast Iron as well as Plastic, Aluminum Alloy, Wood and Other Softer Metals. NOT for Glass or Ceramic Materials. NOT for High Carbon Steel and Heat-Treated Steel. Pay attention to speed, pressure and heat control during drilling.